Re: [Qemu-devel] [PATCH 0/3] virtio-blk: Suppress error action on r/w beyond end

[Paolo Bonzini]

Il 05/06/2014 14:15, Markus Armbruster ha scritto:
> When a device model's I/O operation fails, we execute the error
> action.  This lets layers above QEMU implement thin provisioning, or
> attempt to correct errors before they reach the guest.  But when the
> I/O operation fails because its invalid, reporting the error to the
> guest is the only sensible action.
>
> This short series does exactly that for virtio-blk.  I intend to do
> the same for IDE and SCSI.

Actually SCSI already does it (see check_lba_range in 
hw/scsi/scsi-disk.c).  Thanks for thinking about it though!

Paolo